BUDAPEST (Reuters) - Hungarian Prime Minister Viktor Orban's ruling Fidesz party was re-elected on Sunday for a third successive term with a strong mandate, with preliminary results showing Fidesz possibly gaining a two-thirds majority in parliament.

With 74.6 percent of votes counted, National Election Office data projected Fidesz winning 134 seats in the 199-seat parliament. Nationalist Jobbik was projected to win 26 seats, with the Socialists in third place with 20 lawmakers.